Statement of the Problem -- General Scheme of Estimation of Seismic Stability -- Seismic Hazard -- Variation of Seismic Hazard -- Seismic Loads -- The Definition of Seismic Actions -- The Probability of Loads During the Earthquake of a Given Intensity -- Recognition of Earthquake Foci -- The Calculation of Seism Caused by Movement in the Earthquake Focus -- Physics of Focus and Control of Seismicity -- Seismic Forces for a Fixed Position and Energy of the Earthquake Source -- The Influence of Topography and Soil Conditions. Secondary Processes -- Influence of the Canyons -- Dynamics of Water-Saturated Soil Equivalent Single-Phase Environment -- Dynamics of Water-Saturated Soil as Multiphase Medium -- The Real Estimates of the Property of Soils -- Mathematical Formulation of the Problem -- Examples of Calculations -- Landslides and Mudflows -- Waves on the Water -- Example of Determination of Seismic Loads on the Object in an Area of High Seismicity -- Assessment of Seismotectonics and Choice of Calculation of Seismicity -- The Parameters of Impacts -- Selection of Unique -- Numerical Models of the Focus -- The Influence of the Shape of the Canyon -- Examples of Determination of Seismic Effects on Objects in Areas of Low Seismicity -- Preliminary Analysis -- Assessment of Seismic Risk on Seismological Data -- Tectonic Structure of the Area -- Recognition of Seismically Active Nodes' Morphostructure -- The Types of Computational Seismic Effects -- Analog Modeling of Seismic Effects -- Mathematical Modeling of Seismic Effects -- Stability of Structures During Earthquakes -- Stability of Concrete Dams -- Vibration and Strength Reserves of the High Dams -- Stability and Final Displacements of the Dam -- Stress and Strain of the Dam -- Character and Form of Dam Failure -- The Reliability of Groundwater Dams -- The Stability of Underground Structures -- Seismic Effects Caused by Missing Floods Through the Waterworks -- The Vibration of the Dam -- Soil Vibration Outside of the Dam -- Vibration Houses -- Results and Recomendation